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-   -   Need help with building an offset. (http://www.bbq-brethren.com/forum/showthread.php?t=147533)

Hawg Father of Seoul 11-09-2012 07:34 PM

Need help with building an offset.
 
We have a 30 x 48 pipe (rounded ends). Was figuring a 20 x 20 (id) firebox would work. Was trying to figure out how big to make the opening from the firebox to the chamber.

Thanks.

Garrett 11-09-2012 07:39 PM

I do know that you need the same square inches going in as you have coming out. There's a ratio chart on the web somewhere for it. I will try to find it or maybe someone will chime in who knows all that info.

Swamp Donkeyz BBQ 11-09-2012 07:40 PM

Yes, as stated above there's a chart and maybe a calculator also.


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Garrett 11-09-2012 07:45 PM

http://webpages.charter.net/tomchism...Calculator.htm

Maybe this will help or maybe there is a better one chart. Just google ratio chart for building a smoker. I know this is in a spreadsheet form and you can enter your dimensions and it will calculate for you.

Novass 11-10-2012 12:03 AM

Not to run the build off, but you can try smokerbuilder.com . a lot of good people over there that can answer your ?.

Pappy 11-10-2012 08:08 AM

We use this one.

http://www.thesmokering.com/forum/viewtopic.php?t=20871


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